Home / 42,747.16-64,133.64-12,762.37

Finding the Fourth Proportional to 42,747.16, 64,133.64 and 12,762.37

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Solution

The fourth proportional to 42,747.16, 64,133.64 and 12,762.37 is: 19,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747.16 : 64,133.64 = 12,762.37 : x
  2. Step 2: Convert to fraction form
    42,747.16/64,133.64 = 12,762.37/x
  3. Step 3: Cross multiply
    42,747.16x = 64,133.64 × 12,762.37
  4. Step 4: Simplify right side
    42,747.16x = 818,497,243.13
  5. Step 5: Solve for x
    x = 818,497,243.13/42,747.16
  6. Step 6: Final answer
    x = 19,147.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.